Add example video

Author: romainljsimon

README.md

@@ -13,6 +13,8 @@
 ParticlesMC is a Julia package for performing atomic and molecular Monte Carlo simulations. It is designed to be efficient and user-friendly, making it suitable for both research and educational purposes. Built on top of the <a href="https://github.com/TheDisorderedOrganization/Arianna.jl"> Arianna </a> module, it leverages Arianna’s Monte Carlo framework.
 </p>
 
+![MC simulation of a 2D liquid](./data/movie/movie.mp4)
+This example can be reproduced by running `particlesmc params.toml` in the `data/movie/` folder . Movie generated with [OVITO](https://www.ovito.org/)
 ## Features
 
 - **Flexible execution**: Simulations can be run from standalone scripts or through a command-line interface (CLI), enabling easy integration into workflows.
@@ -21,6 +23,7 @@ ParticlesMC is a Julia package for performing atomic and molecular Monte Carlo s
 - **Computational efficiency**: Designed with performance in mind to enable fast simulations.
 - **Arianna framework integration**: Leverages the [Arianna](https://github.com/TheDisorderedOrganization/Arianna.jl) Monte Carlo framework, benefiting from advanced techniques such as Policy-Guided Monte Carlo (PGMC) and parallel tempering (soon).
 
+
 ## Installation
 
 ### Requirements